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Heart scans without X-Rays: a safer way to check Kids' hearts

NCT ID NCT03822442

Knowledge-focused Sponsor: Children's National Research Institute Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether using cardiac MRI (a type of scan without radiation) can make heart exams safer and more accurate for children with heart failure, heart defects, or who have had a heart transplant. Researchers compared MRI results with standard biopsy and X-ray methods in 113 participants. The goal was to reduce radiation exposure and improve detection of heart problems.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

113 people

The number who actually took part.

Started

Dec 2019

Finished

Dec 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

Individuals referred to Children's National Medical Center with heart transplant or cardiomyopathy (i.e. "pre-transplant") to undergo clinically-indicated cardiac catheterization will be considered candidates for inclusion.

Ages

6 months and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Children and adults of any age with heart transplant, suspected or confirmed cardiomyopathy * Undergoing clinically-indicated ("medically necessary") cardiovascular catheterization Exclusion Criteria: * Cardiovascular instability including hemodynamic instability (such as requiring significant vasoactive infusion support) or mechanical hemodynamic support. * Women who are pregnant * Women who are nursing and who do not plan to discard breast milk for 24 hours * Exclusion criteria for MRI * Central nervous system aneurysm clips * Implanted neural stimulator * Implanted cardiac pacemaker or defibrillator which are not MR safe or MR conditional according to the manufacturer * Cochlear implant * Ocular foreign body (e.g. metal shavings) * Implanted Insulin pump * Metal shrapnel or bullet. * Exclusion criteria for Gadolinium * Renal disease with estimated glomerular filtration rate \[eGFR\] \< 30 ml/min/1.73 m2 body surface area The eGFR will be used to estimate renal function if reported by the laboratory. The Schwartz equation 33 for estimation of GFR in children as recommended by the NKDEP is as follows: GFR (mL/min/1.73 m2) = (k × height) / serum creatinine concentration where k = constant defined as follows: k = 0.33 in premature infants k = 0.45 in term infants to 1 year of age k = 0.55 in children to 13 years of age k = 0.70 in adolescent males (not females because of the presumed increase in male muscle mass, the constant remains 0.55 for females) Height in cm Serum creatinine in mg/dL

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Conditions

The condition(s) this trial relates to.

Cardiomegaly cardiomyopathy congenital heart disease heart failure

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Cardiac imaging techniques Congenital heart defects Heart failure

Contacts and locations

Locations

  • Children's National Health System

    Washington D.C., District of Columbia, 20010, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.